A '''blacklist''' (or '''black list''') is a list or register of entities or people, for one reason or another, are being denied a particular privilege, service, mobility, access or recognition. As a verb
, to blacklist can mean to deny someone work in a particular field, or to ostracize
a person from a certain social circle.
Conversely, a whitelist
is a list or compilation identifying entities that are accepted, recognized, or privileged.
The term ''blacklisting'' may be used in a pejorative sense, implying that a person has been prevented from having legitimate access to something due to inappropriate covert actions of those who control access. For example, a person being served with a restraining order
for having threatened another person would not be considered a case of blacklisting. However, somebody who is fired for exposing poor working conditions in a particular company, and is subsequently systematically blocked from finding work in that...